My daughter, a trumpet play has played the echo. It’s really chilling. I think Taps is played with all the valves open.
good on your daughter. Hope she keeps playing. I played band coronet and trumpet and regret I stopped playing.
I’ve seen most trumpeters play taps as open.
check out this thread from trumpeters - military and others, on how taps is played in different keys for diffreent reasons.
https://www.trumpetherald.com/forum/viewtopic.php?t=9283&sid=7dd1b9877918646e44ff5790aaac0cd5